One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Fairfax you should be able to figure out when it's the best time to plant potatos.

Planting Calendar for Potatos

Frost tolerance for potatos:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Potatos are very cold tolerant which means that you can plant them much earlier than more sensitive plants.

The earliest that you can plant potatos in Fairfax is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant potatos and expect a good harvest is probably September. Any later than that and your potatos may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your potatos indoors.

Last Frost Date

The average date of last frost is April 15 in Fairfax. You can expect an average low temperature of 0°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Fairfax is not always accurate and the actual date of last frost is different every year. Half of the time in Fairfax it frosts late in the year after April 15 so just be sure to be ready to protect your potatos in the event of one of those late frosts.

USDA Zone Info for Fairfax

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Fairfax

You may be interested in your other planting guides for Fairfax.